title: Spinal anaesthesia in obstetrics: headache and special needles.
authors.forename: D V
authors.initials: DV
authors.lastname: Thomas
mesh_terms: D000773:Anesthesia, Obstetrical / Q000295:instrumentation; D000775:Anesthesia, Spinal / Q000295:instrumentation; D005260:Female; D006801:Humans; D009339:Needles; D011247:Pregnancy